7 band equalizer

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striker_24

New Member

• Feb 16, 2009

• #1

**broken link removed**

Anyone can help me make that 10 band equalizer to 7 band equalizer?

What are the things i will remove?

Also,can anyone give me the corresponding values of the resistors in that equalizer?

Thanks lot!

striker_24

 

Last edited: Feb 16, 2009

P

pao_wikhan

New Member

• Feb 17, 2009

• #2

you'll have to recompute for the bands...also your circuit seems to be so complicated, using too many op-amps...to have a better output just cascade a high pass and low pass filter and you'll adjust them to your prescribed frequency...just remember that your 5th band should attain a 1kHz frequency...

 

Last edited: Feb 17, 2009

audioguru

Well-Known Member

Most Helpful Member

• Feb 18, 2009

• #3

Like I said on the other website, you need simple Multiple-Feedback-Bandpass filters, not a highpass filter followed by a lowpass filter, millions of buffer opamps and two opamps without any negative feedback.

 

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Teajelly

New Member

• Mar 1, 2009

• #4

I will be using an NE5532 for the op amps with single supply, will it work if I will ground the -Vcc or do I need to follow your sticky?

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Mar 1, 2009

• #5

No, you generally can't just ground -ve, you need to follow those examples.

 

T

Teajelly

New Member

• Mar 1, 2009

• #6

would the configuration not affect the performance and computation of the equalizer?

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Mar 1, 2009

• #7

Teajelly said:

would the configuration not affect the performance and computation of the equalizer?

Click to expand...

No, as long as it's correctly done - however, this is a pretty naff equaliser anyway - the normal (and better) way uses gyrators.